Tom pulls out his cock

"You mind if I?", Tom starts to say, as you nod at him. He pulls down his boxers and you get a much closer look at his slender cock. He puts his right hand on his cock and starts to rub his dick with his fingers and his thumb. He notices you staring at him, but he doesn't seem to care much, his attention mostly fixed on the screen.

Your father is really sucking his father in law, your maternal grandfather, quite viciously as your mother sucks her own father's balls. Your grandfather has his hands on both of their heads and is moaning quite loudly. Your mother and father kiss briefly and then go back to pleasuring your grandfather.

Tom lets out a soft moan as your attention is drawn back to your 18 year old brother. "This is hot as fuck. I think I am going to cum soon..."

Apparently he didn't need any help from you after all.

It doesn't take long, especially not after seeing your grandfather spill his load on your father and mother, that Tom cums all over the bed, over himself, and some onto the floor.

"Holy fuck Tom, you're gonna sleep here tonight, I guess." You say, a bit angry at him ruining the room.

Tom looks at you a bit stunned. "Ok." He says after a bit. "I can if you want me to."

"I do." you say, and start to gather your self off the bed to leave. You turn to see Tom fully naked on the bed.

"How do you want me?" he says, trailing off.

You start to ask him what the hell he is talking about, but then you realize he's just offered up his ass to you.